We're getting a bit side tracked but here goes... You can at least critique the ones where he describes what cryptocurrencies do and that cryptocurrencies would

We're getting a bit side tracked but here goes... You can at least critique the ones where he describes what cryptocurrencies do and that cryptocurrencies would be some kind of cult. Paragraph 3 and the last one specifically. Those are opinions, but they are presented as facts. It's certainly true that some cryptocurrencies are marketed as investments but it doesn't describe the market as a whole, there are so many things happening in that space that I would describe it as a mischaracterization. The believer point you bring up is really no different from people believing in a certain stock, they're heavily invested and try to rationalize their choices. This behaviour looks like some form of cognitive dissonance. You see this quite often online in Facebook stock groups and similar groups, typical retail investor behaviour unfortunately.